matiex | 18c491931287787e01064c705c8ae6b7befd908f32989155f6d2f1ee660ed2a6

General

Target

37472a1bfa5be3fac348e24e3d2e92e4.exe
Size

658KB
MD5

37472a1bfa5be3fac348e24e3d2e92e4
SHA1

0f61f0ab618017cd6122948628d2ff36d274ec27
SHA256

18c491931287787e01064c705c8ae6b7befd908f32989155f6d2f1ee660ed2a6
SHA512

18947f98a6019f34c63e5d8b414184c468bc148989e3c633435550a5db2a46d1c6d4b36b15ac67549085ebe0a05f0f28947995dcdeae23c3a980b88dda2779f8
SSDEEP

6144:B9QA4vedjV+gzjCtJO4BlZixpv+B7/Lr4Jb9pNDRzfdP/1qWADh:LQA8YjV+gPuJDZiV+B7DrwlDRxY5D

Score

10^/10

matiex collection keylogger spyware stealer

Malware Config

Extracted

Family

matiex

Credentials

Protocol: smtp
Host:
mail.thts.vn
Port:
25
Username:
[email protected]
Password:
123luongngan1989
Email To:
[email protected]

Signatures

Matiex
Matiex is a keylogger and infostealer first seen in July 2020.
stealer keylogger matiex

Matiex Main payload 1 IoCs

resource	yara_rule
behavioral2/memory/1772-17-0x0000000000400000-0x0000000000472000-memory.dmp	family_matiex

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	37472a1bfa5be3fac348e24e3d2e92e4.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	37472a1bfa5be3fac348e24e3d2e92e4.exe
Key opened	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	37472a1bfa5be3fac348e24e3d2e92e4.exe
Key opened	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	37472a1bfa5be3fac348e24e3d2e92e4.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
72	checkip.dyndns.org
76	freegeoip.app
78	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2512 set thread context of 1772	2512	37472a1bfa5be3fac348e24e3d2e92e4.exe	101

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1236	1772	WerFault.exe	101

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2908	schtasks.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1772	37472a1bfa5be3fac348e24e3d2e92e4.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 2908	2512	37472a1bfa5be3fac348e24e3d2e92e4.exe	100
PID 2512 wrote to memory of 2908	2512	37472a1bfa5be3fac348e24e3d2e92e4.exe	100
PID 2512 wrote to memory of 2908	2512	37472a1bfa5be3fac348e24e3d2e92e4.exe	100
PID 2512 wrote to memory of 1772	2512	37472a1bfa5be3fac348e24e3d2e92e4.exe	101
PID 2512 wrote to memory of 1772	2512	37472a1bfa5be3fac348e24e3d2e92e4.exe	101
PID 2512 wrote to memory of 1772	2512	37472a1bfa5be3fac348e24e3d2e92e4.exe	101
PID 2512 wrote to memory of 1772	2512	37472a1bfa5be3fac348e24e3d2e92e4.exe	101
PID 2512 wrote to memory of 1772	2512	37472a1bfa5be3fac348e24e3d2e92e4.exe	101
PID 2512 wrote to memory of 1772	2512	37472a1bfa5be3fac348e24e3d2e92e4.exe	101
PID 2512 wrote to memory of 1772	2512	37472a1bfa5be3fac348e24e3d2e92e4.exe	101
PID 2512 wrote to memory of 1772	2512	37472a1bfa5be3fac348e24e3d2e92e4.exe	101

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	37472a1bfa5be3fac348e24e3d2e92e4.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	37472a1bfa5be3fac348e24e3d2e92e4.exe

C:\Users\Admin\AppData\Local\Temp\37472a1bfa5be3fac348e24e3d2e92e4.exe
"C:\Users\Admin\AppData\Local\Temp\37472a1bfa5be3fac348e24e3d2e92e4.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sVzAYXoSuQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF9B.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2908
- C:\Users\Admin\AppData\Local\Temp\37472a1bfa5be3fac348e24e3d2e92e4.exe
  "C:\Users\Admin\AppData\Local\Temp\37472a1bfa5be3fac348e24e3d2e92e4.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1772
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1772 -s 2032
    3⤵
    - Program crash
    PID:1236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1772 -ip 1772
1⤵
PID:1384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1772-17-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/1772-24-0x0000000074CC0000-0x0000000075470000-memory.dmp

Filesize
7.7MB

Download
memory/1772-23-0x0000000006A60000-0x0000000006C22000-memory.dmp

Filesize
1.8MB

Download
memory/1772-22-0x00000000052C0000-0x00000000052D0000-memory.dmp

Filesize
64KB

Download
memory/1772-21-0x00000000051E0000-0x0000000005246000-memory.dmp

Filesize
408KB

Download
memory/1772-19-0x0000000074CC0000-0x0000000075470000-memory.dmp

Filesize
7.7MB

Download
memory/2512-4-0x0000000005500000-0x0000000005510000-memory.dmp

Filesize
64KB

Download
memory/2512-7-0x00000000082B0000-0x000000000834C000-memory.dmp

Filesize
624KB

Download
memory/2512-8-0x0000000074CC0000-0x0000000075470000-memory.dmp

Filesize
7.7MB

Download
memory/2512-9-0x0000000005500000-0x0000000005510000-memory.dmp

Filesize
64KB

Download
memory/2512-10-0x0000000008350000-0x00000000083AE000-memory.dmp

Filesize
376KB

Download
memory/2512-11-0x000000000AA70000-0x000000000AAE8000-memory.dmp

Filesize
480KB

Download
memory/2512-6-0x00000000081E0000-0x00000000081FC000-memory.dmp

Filesize
112KB

Download
memory/2512-5-0x0000000005590000-0x000000000559A000-memory.dmp

Filesize
40KB

Download
memory/2512-20-0x0000000074CC0000-0x0000000075470000-memory.dmp

Filesize
7.7MB

Download
memory/2512-1-0x0000000074CC0000-0x0000000075470000-memory.dmp

Filesize
7.7MB

Download
memory/2512-3-0x00000000055C0000-0x0000000005652000-memory.dmp

Filesize
584KB

Download
memory/2512-2-0x0000000005AD0000-0x0000000006074000-memory.dmp

Filesize
5.6MB

Download
memory/2512-0-0x0000000000AD0000-0x0000000000B7A000-memory.dmp

Filesize
680KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads